If they're all definitely only two characters then that should be all you need.
Often when that isn't the case it's a good idea to include the commas - to make sure you're hitting a string inside another :-)

Featured Post

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.

In earlier versions of Windows (XP and before), you could drag a database to the taskbar, where it would appear as a taskbar icon to open that database. This article shows how to recreate this functionality in Windows 7 through 10.

The Windows Phone Theme Colours is a tight, powerful, and well balanced palette.
This tiny Access application makes it a snap to select and pick a value. And it doubles as an intro to implementing WithEvents, one of Access' hidden gems.

In Microsoft Access, learn how to “cascade” or have the displayed data of one combo control depend upon what’s entered in another.
Base the dependent combo on a query for its row source:
Add a reference to the first combo on the form as criteria i…

Using Microsoft Access, learn some simple rules for how to construct tables in a relational database.
Split up all multi-value fields into single values:
Split up fields that belong to other things into separate tables:
Make sure that all record…